Innovative Thermal Break Cavity Battens

Use our Cavi-Break & Cavi-Vent cavity battens to deliver improved cavity thermal breaks, effective cavity drainage, moisture control & cavity closure.

Easy and cost effective to install in residential and commercial construction for NCC compliance.

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Our Cavity Batten System

Meet and exceed 7 Star and NCC 2025 requirements

Experience our innovative thermal break cavity batten products, working seamlessly as a system to provide superior building energy efficiency and durability.

Designed to meet and exceed 7 Star and NCC 2025 requirements for thermal efficiency, cavity ventilation and condensation management.

ATI Cavi-Break® and Cavi-Vent™ installation schematic for timber or steel construction

Cavi-Break® Cavity Batten

The Essential Thermal Break Cavity Batten

High-performance thermal barrier: Effectively reduces heat transfer between external cladding and the frame.
Easy installation: Self-adhesive backing ensures quick and secure application.
Versatile compatibility: Suitable for both steel and timber frame construction.

Cavi Break Info

Cavi-Vent® Cavity Drainage Batten

Ventilated Cavity Drainage Batten, Cavity Closer and Thermal Break

Dual functionality: Acts as both a ventilated 20mm cavity drainage batten and a thermal break.
Superior moisture management: Promotes airflow and prevents condensation, reducing the risk of rot, mildew and mould.
Effective pest control: Closes the cavity, preventing vermin infestation.

ATI Cavity Batten Benefits:

Achieve true 7 Star Energy Efficiency: Ease of Compliance. Significantly reduce thermal bridging for optimal performance.
Proper Ventilation and Moisture Control: Create a healthy and long-lasting structure with ventilation and moisture control.
Simplified Installation:
Easy application, saving you time and effort.
Ideal for:
- Steel and timber framing
- Residential and commercial construction
- All types of lightweight cladding

Choose Australian Thermal Industries’ Cavi-System for a comprehensive NCC compliance solution that delivers exceptional thermal break performance results.

Easy and Quick Install

Watch the Cavi-System installation in action at Brooks Builders’ child care building site

Thermal Performance

R-value of 0.58 m² K/W, exceeding the NCC minimum R-Value requirement of 0.2 m² K/W nearly three times

ATI’s Cavi-Break® and Cavi-Vent® Strips are an advanced thermal break and condensation management solution.

With the upcoming NCC 2025 changes, this will become even more important.

Try our Wall R-Value Calculator

Benefits for Builders

There are many benefits for residential and light commercial builders using the Cavi-Break® and Cavi-Vent® System

Lightweight for easy handling
Easy to cut & quick to install
45mm x 20mm based on industry needs
Convenient 1200mm length
Will not compress (300KPa strength)
Self-adhesive that really works
70 Cavi-Break or Cavi-Vent Strips (84 linear meters) per carton
Superior condensation management
Superior thermal properties (R-value of 0.58m²)
10 Year Warranty

ATI Wall R-value calulator results

Try our Wall R-Value Calculator

Cavi-Break Strip opened box viewed from top

How many thermal break strips do you need?

We’ve created a Usage Estimator for your convenience to estimate how many cavity batten strips are needed for your project.

Call 1300 430 949 or send us a message for a free sample or any other question.

Usage Estimator

Customer Stories

Product Review

Since switching to Cavi-Break and Cavi-Vent, we’ve noticed significant improvements. The R0.58 thermal performance and the 20mm thickness — compared to our previous 35mm batten — have made a real difference.

Overall, Cavi-Break and Cavi-Vent have streamlined our workflow, improved our build quality, and made the job easier for our crew.

Steven Nousala, General Manager Oly Homes
Queensland’s Modular Home Builder

Outstanding Service

Many thanks to Aaron and the team at ATI for their professionalism and amazing service in providing Cavi-Break for our building projects. Their communication and turnaround is next level, and we are so impressed with the easy installation and performance of this product.

On a recent cottage project oriented full west, the Cavi-Break combined with wall insulation regulates internal temperature so well that the A/C unit is virtually redundant even in high summer and humidity. We will continue to use this product to help us build more sustainably and keep ahead of changing energy rating requirements.

Erin from The Hill Station Interiors

Large-Scale Residential Project

This was the main product feedback we got from a large-scale residential project developer (470 homes) who used our thermal break cavity batten products:

Faster Installation
Efficient Cladding Installation
Reframing Steel Structures with Timber not necessary
Reliable Bremix Fasteners
Minimised Waste
Interest in 2750mm cavity batten lengths

Read our full article for more details.

Lifestyle Cabins unplugged

“ATI’s products have simplified our tiny home construction process. The self-adhesive design streamlines installation, reducing noise and dust on-site

With an approximate 25% boost in thermal efficiency across the wall envelope, we can offer long-term energy savings for our customers.

Additionally, the passive condensation management promotes healthier indoor air quality. We’d recommend ATI to any builder focused on quality and efficiency.”

Ross Head, Owner

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Home Owner Experience

After a quick Google search, I came across Australian Thermal Industries (ATI) while researching thermal break and wall cavity options for my new home.

ATI provided exceptional support, giving me all the details I needed to persuade my builder to choose ATI’s Cavi-Vent batten over inferior alternatives.

Mark U, Home Owner, Brisbane

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Brooks Builders

For us, it’s a no brainer. We’ll definitely be using the ATI Cavi-Strip in more projects.

It’s just so simple and easy to use and cost effective, so it’s definitely the product we’ll be using ongoing.

Justin Brooks, Director

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WST Building & Construction

I decided to go with ATI Cavi-Break® and let me tell you, the customer service I received was second to none. What’s more, it was competitively priced, even beating the competition who had a far less superior product.

Installation was a breeze, especially because there was no need for any power tools. I was surprised at how quickly the strips went up, ready to install the cladding.

Sam Payling, Director

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Buy From Our Resellers

Order from our building supply stockists and we dispatch same day

Find a Reseller

The ATI Story

Revolutionising Australian Building Efficiency

Australian Thermal Industries (ATI) specialises in the production and supply of high-performance products that enhance energy efficiency in new Australian homes.

With a keen eye on innovation and strategic procurement, ATI presents Cavi-Break® and Cavi-Vent®, standout products developed to enhance thermal mitigation for steel framing and to provide dependable thermal break cavity battens for timber frames, ensuring superior ventilation and condensation management and bolstering building integrity.

ATI Cavi-Break Box image

Planning a Project?

Cavi-Break® and Cavi-Vent® Thermal Break Strips are a lightweight, easy to apply and economical product that exceeds the minimum National Construction Code (NCC) requirement by almost 3 times.

Contact us today so that we can work with you on your project.

Did you know

ATI donates 1% of the sales revenue to the HIA Charitable Foundation (HIACF), which works to improve health and welfare outcomes in the housing industry, including mental health issues.

Charitable-Foundation-d

News & Articles

Latest Insight

470 Homes Residential Development Using ATI’s Cavity Batten System

This week, ATI had the opportunity to visit a large-scale residential project of approximately 470 homes, all set to utilise ATI’s Cavi-Break and Cavi-Vent products....

NCC 2025 Changes to Thermal Breaks and Condensation Management: What You Need to Know

National Construction Code 2025 Changes As May 2025 approaches, Australia’s National Construction Code (NCC) is set to undergo significant updates. The 2025 NCC will...

Cavi-Break® Strip a perfect solution for modular building construction

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Exploring the Role of Thermal Breaks

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Cavities Behind Lightweight Cladding: Problems, the Science and Best Practice

Australia’s building industry faces a mounting issue with the prevalence of ‘leaky buildings’ due to outdated practices in cladding application, resulting in widespread mould and structural decay, an issue highlighted by the Victorian Government’s findings of toxic mould in wall frames during cladding replacement initiatives.

Lightweight Cladding – How to Manage Condensation and Prevent Mould

The use of lightweight cladding in residential and light commercial construction is becoming increasingly popular due to factors such as affordability and the wide range of options available on the market.

Timber frame? Cavity battens are a MUST…

Good builders using ‘best practice’ insist on using cavity battens as a prudent measure to increase the lifespan and condition of the building, but most homeowners and customers are not aware of how vital this construction method really is.

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